> if I run smartctl -a /dev/hda on my Computer i get some strange output.
> Does anyone know what this might mean?
> The temp seams a little to high. And the other values also seem a little
> strange ....
> ==> WARNING: Contact developers at
> smartmontools-support@...; may need -F samsung[2] enabled.
> 194 Temperature_Celsius 0x0022 148 148 000 Old_age Always
> - 30
30 Celsius is reasonable.
You need -v 9,halfminutes and -F samsung2
Run short and long self-tests with -t short and -t long, but let them
complete!
Bruce

Hi,
On Sun, 2010-03-28 at 18:44 -0400, zirath wrote:
> This is the output from smartmontools. I wanted to use it because
> seatools for dos was reporting that the temperature of the drive was
> 253. Smartmontools seems to be saying that but it's reporting 253 for
> alot of other things. Help appreciated.
have a look at smartmontools manual pages (quote below)
in section OPTIONS "-A, --attributes"
http://smartmontools.sourceforge.net/man/smartctl.8.html#lbAG
In your case 253 is the normalized value of the attribute,
raw value is 37.
> ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
> UPDATED WHEN_ FAILED RAW_VALUE
>
> 194 Temperature_Celsius 0x0032 253 253 000 Old_age
> Always - 37
HTH,
Gabriele
----------------------
Section OPTIONS
-A, --attributes
[ATA] Prints only the vendor specific SMART Attributes. The
Attributes are numbered from 1 to 253 and have specific names
and ID numbers. For example Attribute 12 is "power cycle count":
how many times has the disk been powered up.
Each Attribute has a "Raw" value, printed under the heading
"RAW_VALUE", and a "Normalized" value printed under the heading
"VALUE". [Note: smartctl prints these values in base-10.] In the
example just given, the "Raw Value" for Attribute 12 would be
the actual number of times that the disk has been power-cycled,
for example 365 if the disk has been turned on once per day for
exactly one year. Each vendor uses their own algorithm to
convert this "Raw" value to a "Normalized" value in the range
from 1 to 254. Please keep in mind that smartctl only reports
the different Attribute types, values, and thresholds as read
from the device. It does not carry out the conversion between
"Raw" and "Normalized" values: this is done by the disk's
firmware.
The conversion from Raw value to a quantity with physical units
is not specified by the SMART standard. In most cases, the
values printed by smartctl are sensible. For example the
temperature Attribute generally has its raw value equal to the
temperature in Celsius. However in some cases vendors use
unusual conventions. For example the Hitachi disk on my laptop
reports its power-on hours in minutes, not hours. Some IBM disks
track three temperatures rather than one, in their raw values.
And so on.
Each Attribute also has a Threshold value (whose range is 0 to
255) which is printed under the heading "THRESH". If the
Normalized value is less than or equal to the Threshold value,
then the Attribute is said to have failed. If the Attribute is a
pre-failure Attribute, then disk failure is imminent.
Each Attribute also has a "Worst" value shown under the heading
"WORST". This is the smallest (closest to failure) value that
the disk has recorded at any time during its lifetime when SMART
was enabled. [Note however that some vendors firmware may
actually increase the "Worst" value for some "rate-type"
Attributes.]
The Attribute table printed out by smartctl also shows the
"TYPE" of the Attribute. Attributes are one of two possible
types: Pre-failure or Old age. Pre-failure Attributes are ones
which, if less than or equal to their threshold values, indicate
pending disk failure. Old age, or usage Attributes, are ones
which indicate end-of-product life from old-age or normal aging
and wearout, if the Attribute value is less than or equal to the
threshold. Please note: the fact that an Attribute is of type
'Pre-fail' does not mean that your disk is about to fail! It
only has this meaning if the Attribute's current Normalized
value is less than or equal to the threshold value.
If the Attribute's current Normalized value is less than or
equal to the threshold value, then the "WHEN_FAILED" column will
display "FAILING_NOW". If not, but the worst recorded value is
less than or equal to the threshold value, then this column will
display "In_the_past". If the "WHEN_FAILED" column has no entry
(indicated by a dash: '-') then this Attribute is OK now (not
failing) and has also never failed in the past.
The table column labeled "UPDATED" shows if the SMART Attribute
values are updated during both normal operation and off-line
testing, or only during offline testing. The former are labeled
"Always" and the latter are labeled "Offline".
So to summarize: the Raw Attribute values are the ones that
might have a real physical interpretation, such as "Temperature
Celsius", "Hours", or "Start-Stop Cycles". Each manufacturer
converts these, using their detailed knowledge of the disk's
operations and failure modes, to Normalized Attribute values in
the range 1-254. The current and worst (lowest measured) of
these Normalized Attribute values are stored on the disk, along
with a Threshold value that the manufacturer has determined will
indicate that the disk is going to fail, or that it has exceeded
its design age or aging limit. smartctl does not calculate any
of the Attribute values, thresholds, or types, it merely reports
them from the SMART data on the device.